eng Science and Education Publishing Journal of Computer Sciences and Applications 2328-725X 2015-04-16 3 2 52 55 10.12691/jcsa-3-2-6 JCSA2015326 article Harsh Bhasin i_harsh_bhasin@yahoo.com 1 Asif Hameed Khan 1 Department of Computer Sc.&Engg, Jamia Hamdard University, New Delhi-62, India This paper proposes a Genetic Algorithm (GAs) based cryptanalysis technique. Genetic Algorithms are the optimization techniques which are also known for robustness. The analysis and the involved theory have been presented in the paper. The designing of fitness function has been done using the statistical analysis of a Standard English Language documents. The technique has been verified using 9 text documents of about 4000 words and the results are encouraging. The technique paves way of Soft Computing techniques in Cryptanalysis. http://pubs.sciepub.com/jcsa/3/2/6/jcsa-3-2-6.pdf Cryptanalysis Cryptography Genetic Algorithms (GAs)